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Microwqve flickers and shuts off

Hi, we have the above mentioned model microwave which we are experiencing problems with it. When cooking some things ( it seems like it may be smaller items that cause the problem), the electronic display flickers and the unit shuts off. Sometimes the fan comes on before the unit shuts off also.

We can restart the microwave if we cancel the time, but the problem repeats itself.

Has anyone experienced the same and can you provide advice?

Thank you,

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Sadly, we hear of this over and over.

This is due to a defective or loose magnetron causing electrical interference and disruption in the control circuit board.

If your magnetron was recently replaced, it may have loose mounting nuts or bolts or maybe the wire mesh RF gasket was not installed or got pinched.

It may also need a new high-voltage diode and stirrer, and the cavity may be affected.

Details are in their bulletin here. Even if your model is not on the list, the same problem can occur, requiring a kit. The parts kit is similar to this one.

(Your model may use a different kit - this is shown for illustration purposes only).

If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

They may send you a replacement magnetron. GE Customer Service is here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Oct 13, 2008


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